M3 Pill — WHITE RECTANGLE, 20mm — Minocycline
| Imprint | M3 |
|---|---|
| Colour | WHITE |
| Shape | RECTANGLE |
| Size | 20 |
| Strength | Minocycline Hydrochloride 135 mg |
| Dosage form | Tablet, Extended Release |
| Manufacturer | Dr. Reddy's Laboratories Inc |
| NDC | 43598-539 |
| Schedule | — |
| Availability | — |
| Ingredients | Minocycline Hydrochloride[Minocycline] |
What does this imprint mean?
The imprint "M3" is a code stamped or printed on the tablet or capsule by the manufacturer, used to identify the drug, its strength and the maker.
Active ingredient
Minocycline
Uses and warnings
BOXED WARNING: "MINOCYCLINE HYDROCHLORIDE TABLETS, LIKE OTHER TETRACYCLINE-CLASS ANTIBIOTICS, CAN CAUSE FETAL HARM WHEN ADMINISTERED TO A PREGNANT WOMAN," with use during tooth development (last half of pregnancy through age 8) causing permanent tooth discoloration (yellow-gray-brown) and enamel hypoplasia. Other key warnings: photosensitivity reactions, CNS effects (dizziness, vertigo), Clostridium difficile-associated diarrhea (CDAD), Drug Rash with Eosinophilia and Systemic Symptoms (DRESS), and pseudotumor cerebri (benign intracranial hypertension), which can occur with concomitant isotretinoin and may cause permanent vision loss.
Minocycline Hydrochloride Tablets are indicated for infections caused by susceptible organisms, including rickettsial infections (Rocky Mountain spotted fever, typhus fever, Q fever), respiratory tract infections due to Mycoplasma pneumoniae, sexually transmitted infections (chlamydia, uncomplicated gonorrhea, syphilis), skin/soft-tissue and urinary tract infections, and as adjunctive therapy in severe acne; it is also used to eliminate the meningococcal carrier state. As with other antibacterials, the label states minocycline "should be used to treat only infections that are proven or strongly suspected to be caused by susceptible bacteria."
How to identify this pill
- • Check the imprint matches exactly: "M3".
- • Confirm the colour (WHITE) and shape (RECTANGLE).
- • Compare the size (20) against a ruler if possible.
- • When in doubt, confirm with a pharmacist before taking any medication.
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Official references
Source: FDA Structured Product Label via NLM Pillbox archive (retired 2021); source file 7c7a3d89-29a7-e845-a140-b4d1e4139ebb.xml